Correct arrow length is 3/4 of an inch shorter than your amo draw length. This is what the arrow charts go by. You will notice that they never ask your draw length, just arrow length and if you shoot an overdraw (some don't even ask that). If you cut your arrows to a different length you will have to do some adjusting when using a chart.

Eastons say one inch past the point of contact on your rest with newer style bows. However they are assuming your rest is set up in the proper position directly over your grip. This would be the same point you measure brace height and true draw from. A lot of the newer rests do not install in this location though, they all add a slight amount of overdraw. Most of the drop a ways and the WB rests are this way. They mount behind the shelf not over it.

The reason for staying 1 inch in front of your rest is a safety measure. This way it gives you enough leeway that you will not overdraw the bow and have the arrow drop out of the rest possibly injuring ourself. On the older bows there was not suffecient room on the riser for the broad head (non cut out riser) so with a hunting set up you had to keep the arrow longer so the fixed blade head would not hit the riser at full draw. I don't beleive there are any bows like this any more, except traditional archery type stuff.

Paul